The input/output connectors that are available to the blade server are supplied by the BladeCenter chassis. See the documentation that comes with the BladeCenter chassis for information about the input/output connectors.
The blade server has two selection buttons on the control panel: the media tray select button and the keyboard/video/mouse select button. See Blade server controls and LEDs for information about these buttons and their functions.
The Ethernet controllers on the blade server communicate with the network through the Ethernet-compatible I/O modules in the BladeCenter chassis. Network signals to and from the blade server or any expansion cards are automatically routed to a same-network-interface I/O module through circuitry in the BladeCenter chassis.